There are 20 questions in a quiz. Each correct answer scores 7 points, each wrong answer scores -4 points. Eric took the quiz and scored 100 points. How many questions did he left blank?.

Answers

Answer 1

Answer:

1 question

Step-by-step explanation:

There are 20 questions in a quiz. Each correct answer scores 7 points, each wrong answer scores -4 points.

Total number of correct answers = 20 Questions × 7 points = 140 points

Total number of wrong answer = -4 × 20 questions = -80 points

We are told that:

Eric took the quiz and scored 100 points.

Therefore, the number of questions he left blank is 1 question


Related Questions

Help meeeeeEEEEEEEEEEEEEEEEEEE

Answers

Answer:

1.2

Step-by-step explanation:

0.2 x 6 = 1.2

Answer:

1.2

Step-by-step explanation:

0.12 looks like the correct answer but its not because if you look at the problem its 0.2 and 0.12 is smaller than 0.2 so its 1.2 because 0.2 x 6 = 1.2

Hope this helps! Please tell me any questions or concerns in the comments! Byeee <3

The are of the square is 98m^2. How long is the diagonal?

Answers

Answer:

please mark me

length of the diagonal is 14 feet good luck

Step-by-step explanation:

The Chess Club has 24 members, 14 girls and 10 boys. What is the ratio of
girls to boys in the Chess Club?
A. 3:4
O B. 7:5
O C. 5:7

Answers

Answer: I think it would be 7:5 because half of 14=7 and half of 10=5. by the way, are you good at algebra II by any chance? if so can you help me out in return for me helping you out please?

Faith purchases a car for $27,500. The
value of the car will depreciate each
year at a rate of 12.4%. What is the
approximate equivalent monthly
depreciation rate, to the nearest tenth
of a percent?

Help please tell the explanation I’ll give brainleist

Answers

Answer:

To the nearest tenth of a percent, the approximate equivalent monthly depreciation rate is 1.0%

Step-by-step explanation:

From the question, we have a per annum decrease of 12.4%

what this mean is that, yearly, we expect a decrease of 12.4%

To get the monthly decrease value, we have to divide this given value by the number of months in a year which is 12

Thus, we have it that;

12.4%/12

= 1.0%

To the nearest tenth, the monthly decrease percentage is 1.0%

Find the slope intercept form.

Answers

Answer:

y = 3x + 9

Step-by-step explanation:

y = 3x + 6

Parallel slope = 3

(-2, 3)

Slope-intercept:

y - y1 = m(x - x1)

y - 3 = 3(x + 2)

y - 3 = 3x + 6

y = 3x + 9

Determine the area of the trapezoid
a. 16
b. 32
c. 24
d.8​

Answers

The correct answer is letter C

You choose a movie at random from a list containing 8 comedy movies, 5 science fiction movies, and 7 adventure movies. What is the theoretical probability that the movie is not a comedy?

Select all that apply.


0.60
0.60

50%
50%

252 fifths

353 fifths

60%

Answers

This is going to be part over whole, so the part is the science and adventure movies put together (because that is all movies except comedy) so we have 12 as our numerator.
Our whole is all movies which adds up to 20 and that will be our denominator. So, 12/20 can be simplified to 3/5 or 0.6 or 60% (those are the answers)

whats the answer? pls help,
x + 8 > 13 = ?

Answers

Answer:

x=5

Step-by-step explanation:

A disc has a diameter of 23 cm. The inner hole in the disc has a radius of 2 cm. Find the circumference of both the inner hole and the entire disc. Round to the nearest whole centimeter.

Answers

Answer:

Inner hole: 13 cm; Whole disc, 72 cm

Step-by-step explanation:

Connexus 2021

PLZ ANSWER WILL GIVE BRAINLIEST *NO LINKS*

Answers

Answer:

6/20 prescient chance to get a green marble and a 8/19 chance to get a purple one

Step-by-step explanation:

please someone help me on this daosjdoaisjfseughoe

Answers

Answer:7,500

Step-by-step explanation:

no way she gonna make 70 k in a year with that percentage

Square pyramid A and square pyramid B are similar. Their respective heights are 6 and 15 inches. The volume of pyramid B is 312.5 cubic inches. What is the volume of pyramid A?

Answers

The volume of pyramid A is 20 cubic inches.

Given that:

Height of pyramid of A and B are 6 and 15 inches, respectively.

Since square pyramid A and square pyramid B are similar, their corresponding sides are proportional.

Let the volume of pyramid A be V and the scale factor between the two pyramids be k.

The volume of a pyramid is given by V = (1/3) × base area × height.

Since the base of pyramid B is k times the base of pyramid A, and the height of pyramid B is also k times the height of pyramid A, we can set up the following relationship:

V(B) = k³ × V(A)

Given that the height of pyramid A is 6 inches and the height of pyramid B is 15 inches, we can calculate the scale factor k as follows:

k = height of B / height of A = 15 / 6 = 2.5

Now, we know the scale factor k, and we are given the volume of pyramid B as 312.5 cubic inches. We can find the volume of pyramid A:

V(B) = k³ × V(A)

312.5 = 2.5³ × V(A)

312.5 = 15.625 × V(A)

Now, solve for V(A):

V(A) = 312.5 / 15.625

V(A) = 20

The volume of pyramid A is 20 cubic inches.

Learn more about Pyramid  here:

https://brainly.com/question/13057463

#SPJ4

HELPPPPPPPPPPPPPP
A student needed to find the measure of angle b. He incorrectly said m btw 54% angle a

Answers

Answer:

do you have any pictures?

Step-by-step explanation:

16. Audrey bought 4 yards of red fabric
, 2 yards of white, and 1 yards of blue. What is the
total amount of yards that she purchased?

Answers

Answer:

Audrey bought 7 yards.

Step-by-step explanation:

Just add 4+2+1 because those are what colors she bought, but all together she bought 7 yards of all colors.

A square has an area of 81 square feet. Select all the expressios that equal the side length of the square, in feet
A.81/2
B.√81
C.9
D.√9
E.3
Pls help I have until 2:30

Answers

I know A is one of the correct answers, I’m not sure about the others

I WILL GUVE BRAINIEST I NEED ASAP.

A car has 4 cylinders that each have a radius of 4cm and a height of
10. Use 3.14 for pi. Find the volume of a cylinder, solve for the total
volume of the engine in cubic centimeters, then round to the nearest
cubic centimeter.

Answers

Answer:

What I got for my answer for one of the cylinders is 502.65

I hope I helped :3 Let me know if your confused on it or need something done plz I will gladly help ^w^

Select the equivalent expression.
(54.6-10) “ =?
Choose 1 answer:
54. 660
524.860
360
524

Answers

Answer:

©

[tex]( {5}^{4} . { {b}^{ - 10}) }^{ - 6} = ( {5}^{4. - 6} ).( {b}^{ - 10. - 6} ) \\ = {5}^{ - 24} . {b}^{ 60} \\ = \frac{ {b}^{60} }{ {5}^{24} } [/tex]

3 x 2 ?? mark brainlyyyyyy​

Answers

Answer:

6

Step-by-step explanation:

Hope it helps kkkkkjjj9

Answer:

easy 3x2=6

Step-by-step explanation:

it is basically 2 groups of 3 or 3+3 which is 6

Solve using quadratic equation by factoring.

x^2+8x=65

Answers

The answer is X=5,-13

Answer:

-13, 5

Step-by-step explanation:

See image below:)

Solve for x (5x +40) A. AB. BC, AC B. BC. AC. AB C. AC. AB. BC (7x+8) (10x) с A D. BC. AB. AC Which of the following lists the sides in order from shortest to longest?​

Answers

Answer:

D

Step-by-step explanation:

The shortest side is the side opposite the smallest angle, the longest side is opposite the largest angle.

First find the measure of the angles in the triangle.

The sum of the 3 angles = 180° then

5x + 40 + 10x + 7x + 8 = 180

22x + 48 = 180 ( subtract 48 from both sides )

22x = 132 ( divide both sides by 22 )

x = 6

Then

∠ A = 7x + 8 = 7(6) + 8 = 42 + 8 = 50°

∠ B = 5x + 40 = 5(6) + 40 = 30 + 40 = 70°

∠ C = 10x = 10(6) = 60°

The shortest side is opposite ∠ A , that is BC

The longest side is opposite ∠ B , that is AC

The sides in order from shortest to longest are

BC, AB, AC → D

If a number is selected at random from the first 50 natural numbers,what will be the probability that the selected number is a multiple of 3 and 47.
Add working steps :)​

Answers


1
47
X3
—-
132



Example: add 7 x 3 and you will get 12 but take the 1 from 12 and put the 1 on top of 4. Then add 4 x 3 and plus the 1 and add that all together it’s 13 so the answer is 132

PLEASE HELP 26 POINTS AND BRAINLIEST GOES OUT TO CORRECT DON ANSWER IF YOU DO NOT KNOW OR DO NOT GUESS PLEASE SHOW WORK ALSO!!!!!!!!!!

Answers

Answer:

Mean - 89

Median - 90.5

Mode - 89 or 92

Q1 - 84.5

Q3 - 96.5

IQR - 12

Step-by-step explanation:

A mean is an average. Just add all numbers then divide by how many numbers there are.

A median is a middle. Just arrange the numbers from smallest to largest and locate the middle value.

A mode is the number that appears most often. Count how many of each number there is.

Q1 is the middle of the lower half of the data.

Q3 is the middle of the upper half of the data.

IQR is the difference between Q3 and Q1. (subtract)

Beverly wants to list the following numbers in order from greatest to least l. Place the rational number in order from greatest to least? 1/6 6% 0.012 1/12

Answers

Answer:

0.012, 1/12 , 6% , 1/6

Step-by-step explanation:

To put these numbers in order, you need to first put them in the same form. Let's turn them all into decimal form.

* To put fractions in decimal form you need to divide the numerator into the denominator.

* To put a percent into a fraction you need to understand that this percent is out of 100. ex: 6% = 6/100 , 3% = 3/100 11% = 11/100. so in order to put the new fraction into a decimal, you put it in the correct decimal place. This is wrong 6/100 = .60 this reads 6 tenths so we need to go over a decimal place.

This is correct 6/100 = .06 This is 6 tenths.

So let's go through:                                             _

   1 divided by 6 equals                                  0.16

   6% is equal to                                               .06

   0.012 is already in decimal form               0.012      _

 1 divided by 12 equals                                         0.083

 #Always remember you have to put the numbers in the original form that they were given.

# Also the more decimal places a number has behind the decimal the less the number

               Ex:  0.012 > 0.011 Even though these have the same decimal place 0.012 is greater because it's a greater number.

0.12 > 0.012

write five rational number which are smaller than 2​

Answers

Answer:

The numbers can be -4, -3, -2, -1, and 1

select the expression that represent the following statement: add 24 to the quotient of 16 and 8.

16 × 8 + 24
(16 ÷ 8) + 24
24 - 8 + 16
(16 - 8) + 24

Answers

Answer:

[tex](16\div8)+24[/tex]

Step-by-step explanation:

The quotient of 16 and 8 is [tex]16\div8[/tex]. Adding 24 to this value results in [tex](16\div8)+24[/tex].

Anybody know this? Need help

Answers

Answer:

ill give my honest opinion i dont know

Step-by-step explanation:

The angles in a triangle are in the ratio 1 : 2 : 3
Show that the triangle is a right-angled triangle

Answers

Answer:

see explanation

Step-by-step explanation:

sum the parts of the ratio, 1 + 2 + 3 = 6 parts

Divide 180° ( sum of angles in a triangle ) by 6

180° ÷ 6 = 30° ← value of 1 part of the ratio , then

2 parts = 2 × 30° = 60°

3 parts = 3 × 30° = 90°

The angles in the triangle are 30°, 60°, 90°

Then the triangle is right angled

Answer:

The angles are 30°, 60° and 90°.

Step-by-step explanation:

Hint : sum of the angles in triangle = 180°.The triangle is a right-angled triangle.Answer:

Let missing angles be [tex]x[/tex], [tex]2x[/tex].

As the triangle is right-angled triangle.

[tex]x + 2x + {90}^{o} = {180}^{o} [/tex]

[tex]3x = {180}^{o} - {90}^{o} [/tex]

[tex]3x = {90}^{o} [/tex]

[tex]x = \frac{90 ^{o} }{3} [/tex]

[tex]x = {30}^{o} [/tex]

[tex]2x = 30 \times 2 \\ = {60 }^{o} [/tex]

Check:30° + 60° + 90° = 180°.Hope it is helpful....

Find the value of the indicated angle.

Answers

Answer:

leg = 1

hypotenuse = √2 or 1.41

Step-by-step explanation:

this is 3 weeks late please help me

Answers

Answer:

3

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

Answer:

It's J

Step-by-step explanation:

three members d,m,n are in the ratio 3:6:4.find the value of 4m-m over m+2n​

Answers

Answer:

D : M : N

3 : 6 : 4

4M-M= 4(6)-6= 24-6= 18

M+2N= 6+2(4)= 6+8= 14

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